xloader | a58fa4c9cd9960a9b7c8fbab4942b3d1f28035ce37b68b4835afa9e728cbdc0a

General

Target

loader4.exe
Size

245KB
MD5

de0aa0304f6880c7263d35fc7d487278
SHA1

e392b2e0163130093d1b4afddbd318266a02a386
SHA256

a58fa4c9cd9960a9b7c8fbab4942b3d1f28035ce37b68b4835afa9e728cbdc0a
SHA512

f8f8b94e4dc99524210487daf9a273a9ce44328a249afd372c72b360bfc3905cf034c713fb1052e9a3e51e58ad844fa18dd7ac12cbe183c1c998dfd5b4376d6e

Score

10^/10

xloader jdo2 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

jdo2

Decoy

adopte-un-per.com

lmandarin.com

shonemurawni.quest

bantasis.com

jsdigitalekuns.net

hiddenroom.net

arungjerampangalengan.com

yinghongxw.com

buzzcupid.com

lattent.digital

faxtoemailguide.com

romanticfriryrose.com

ruleaou.com

mochiko-blog.com

sekireixploit.com

bcx-wiremesh.com

jobportalsg.com

wysspirit.com

iflycny.com

sh-cy17.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/664-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/560-63-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1152 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

loader4.exe

pid process

1612 loader4.exe

pid	process
1152	cmd.exe

pid	process
1612	loader4.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

loader4.exeloader4.execontrol.exe

description	pid	process	target process
PID 1612 set thread context of 664	1612	loader4.exe	loader4.exe
PID 664 set thread context of 1300	664	loader4.exe	Explorer.EXE
PID 560 set thread context of 1300	560	control.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

loader4.execontrol.exe

pid	process
664	loader4.exe
664	loader4.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe
560	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

loader4.execontrol.exe

pid process

664 loader4.exe
664 loader4.exe
664 loader4.exe
560 control.exe
560 control.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

loader4.execontrol.exe

description pid process

Token: SeDebugPrivilege 664 loader4.exe
Token: SeDebugPrivilege 560 control.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1300 Explorer.EXE
1300 Explorer.EXE

pid	process
1300	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	664	loader4.exe
Token: SeDebugPrivilege	560	control.exe

pid	process
1300	Explorer.EXE
1300	Explorer.EXE

pid	process
1300	Explorer.EXE
1300	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

loader4.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1612 wrote to memory of 664	1612	loader4.exe	loader4.exe
PID 1300 wrote to memory of 560	1300	Explorer.EXE	control.exe
PID 1300 wrote to memory of 560	1300	Explorer.EXE	control.exe
PID 1300 wrote to memory of 560	1300	Explorer.EXE	control.exe
PID 1300 wrote to memory of 560	1300	Explorer.EXE	control.exe
PID 560 wrote to memory of 1152	560	control.exe	cmd.exe
PID 560 wrote to memory of 1152	560	control.exe	cmd.exe
PID 560 wrote to memory of 1152	560	control.exe	cmd.exe
PID 560 wrote to memory of 1152	560	control.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1300

C:\Users\Admin\AppData\Local\Temp\loader4.exe
"C:\Users\Admin\AppData\Local\Temp\loader4.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1612

C:\Users\Admin\AppData\Local\Temp\loader4.exe
"C:\Users\Admin\AppData\Local\Temp\loader4.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:664

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:788

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\loader4.exe"
3⤵
- Deletes itself
PID:1152

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsdF153.tmp\esuhbnkmi.dll
MD5
0b413fd318116a350c284756fd075656

SHA1
e89886c492c5183a9e1fa5e5af0ce08c5b6b0f2f

SHA256
5db476cb59fd2f92f113ee07523cf1f9dd620e2f17557ac6914a58cab23e9d07

SHA512
566ae6e7b8a0882954f801028614d741aec451aa9477132528b016cc0e7581090aa3d575b4c7eda0c1ca54a7f8cbd0717df800fabef3a64675ca4a38d23e1299

Download Submit
memory/560-62-0x0000000000720000-0x000000000073F000-memory.dmp

Filesize
124KB

Download
memory/560-63-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/560-64-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/560-65-0x00000000005F0000-0x0000000000680000-memory.dmp

Filesize
576KB

Download
memory/664-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/664-58-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/664-59-0x00000000002C0000-0x0000000000429000-memory.dmp

Filesize
1.4MB

Download
memory/1300-60-0x0000000004190000-0x000000000423E000-memory.dmp

Filesize
696KB

Download
memory/1300-66-0x0000000006970000-0x0000000006AC9000-memory.dmp

Filesize
1.3MB

Download
memory/1612-54-0x0000000075D11000-0x0000000075D13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads